Journal: The Journal of Biological Chemistry
Article Title: Cardiac-restricted Overexpression of TRAF3 Interacting Protein 2 (TRAF3IP2) Results in Spontaneous Development of Myocardial Hypertrophy, Fibrosis, and Dysfunction *
doi: 10.1074/jbc.M116.724138
Figure Lengend Snippet: Characterization of TRAF3IP2-Tg mice. A and B, TRAF3IP2 mRNA (A) and protein expression (B) in LV tissues of 2-month-old male Tg and NTg mice analyzed by RT-qPCR and immunoblotting. Each lane in panel B represents an individual animal. Densitometric analysis of immunoreactive bands in panel B is summarized on the right. C and D, tissue specificity of transgene-derived TRAF3IP2 overexpression was analyzed by immunoblotting (N, NTg; T, Tg). Densitometric analysis of immunoreactive bands is summarized in D. E, immunofluorescence analysis of TRAF3IP2 overexpression in the heart co-localized with WGA. Scale: 50 μm. TRAF3IP2 overexpression is localized predominantly to cardiomyocytes (CM) but not endothelial or smooth muscle cells of blood vessels (BV). Intensity of TRAF3IP2 immunofluorescence signals were quantified and summarized on the right. F and G, TRAF3IP2 overexpression induces activation of IKKβ, p65, JNK, c-Jun, c/EBPβ, and p38 MAPK in LV tissues from male. Densitometric analysis of immune-reactive bands is summarized on the right (F) but not female Tg (G) as analyzed by immunoblotting using activation-specific antibodies. n = 4/group, Error bars represent S.E. *, p < at least 0.05 versus corresponding NTg.
Article Snippet: The following antibodies were used: TRAF3IP2 (1:500; #NB100-56740, Novus), ANP (1:400; #NBP2-14873, Novus), IL-6 (1:200; #AF-406-NA, R&D Systems), α-tubulin (1:1000; #2144, Cell Signaling Technology or CST), phospho-p65 (Ser 536 ; 1:1000; #3031, CST), p65 (1:1000; #8242, CST), phospho-c-Jun (Ser 63 , 1:1000; #9261, CST), c-Jun (1:1000; #9165, CST), JNK (1:1000; #9252, CST), phospho-JNK (Thr 183 /Tyr 185 ; 1: 1000, #4668, CST), IKKβ (1:1000; #2678, CST), and phospho-IKKα/β (Ser 176 / 180 ; 1:1000; #2694, CST), LOX (1:500; #sc-373995, Santa Cruz Biotechnology or SCB), IL-18 (1:100; #sc-7954, SCB), BNP (1:400, #sc-67455, SCB), ColIα1 (1:2000; #ab34170, Abcam), ColIIIα1 (1:2000; #ab7778, Abcam), CTGF (1:500; #210303, United States Biological), and β-MyHC (1:400, #M9850-11C, United States Biological).
Techniques: Expressing, Quantitative RT-PCR, Western Blot, Derivative Assay, Over Expression, Immunofluorescence, Activation Assay